Year	constant 2015 US$
1976	2106.208670325239
1977	2141.78328788905
1978	2118.9143377037176
1979	2049.2031414796734
1980	1939.962457843288
1981	1896.9881913741815
1982	1764.7915961660317
1983	1666.7570444093456
1984	1629.8804316408264
1985	1559.6913362577002
1986	1475.3376400971174
1987	1501.447064379575
1988	1524.37704932253
1989	1554.0931607015325
1990	1599.5052558671246
1991	1659.9776473774077
1992	1672.6780819342448
1993	1708.9760045979071
1994	1763.3254205969906
1995	1810.1704496416635
1996	1858.4260979819019
1997	1921.016924978627
1998	1992.4367222566445
1999	1956.116025793124
2000	1963.5673277280162
2001	1963.3274758369305
2002	1976.698593386771
2003	1970.8971270105376
2004	2002.0431287503197
2005	2064.0367017297895
2006	2133.1532786897546
2007	2186.5563732256037
2008	2292.4783692465594
2009	2315.958965450386
2010	2349.63452673949
2011	2439.284917803461
2012	2464.9964461706973
2013	2586.2031568513016
2014	2724.9304708310124
2015	2874.017692967394
2016	2997.9591553631285
2017	3039.7299227488393
2018	3137.845817870682
2019	3173.5458586656628
2020	2884.357904498284
2021	2980.554042890198
2022	3040.9554054666705